In this chapter we are going to uncover the secrets of chemical substances by discussing their structure.

What's the difference between solid, liquid and gas?
How can we change the structure of matter?
What's the kinetic theory?

After watching this video you'll be capable of answering all these questions. And many more!

Let's practice the theoretical points we've discussed so far.

In the workbook you'll find the resume of the chapter as well as past paper questions you should solve.

And here're some sample pages.

Any questions left?
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